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《Environmental Science》 2007-01
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Performance of Artificial Medium for Removal Algae in Source Water

JI Rong-ping~(1,2),L Xi-wu~1,LI Xian-ning~1,CHEN Fei-zhou~3(1.Department of Environmental Science & Engineering,Southeast University,Nanjing 210096,China;2.College of Environmental Science & Engineering,Yangzhou University,Yangzhou 225009,China;3.Nanjing Institute of Geography & Limnology,Chinese Academy of Sciences,Nanjing 210008,China)  
Pilot test was made on the removal algae in source water from Meiliang Bay in Taihu Lake through the use of enriched microbes by artificial medium.The results indicate that the algae removal efficiency enhances as the medium density and hydraulic retention time(HRT) increase.However the increasing of flow velocity doesn't reduce the algae removal effect.The removal rates of algae density,biomass,chlorophyll-a are 96.3%,88.7%,86.1% respectively when the medium density is 26.8% and HRT is 5d.It is evident that enriched microbes on the artificial medium can effectively remove the algae in the eutrophic lake.The transparence and intensity of illumination under water are improved obviously by artificial medium.
【Fund】: 国家高技术研究发展计划(863)项目(2002AA601011-03);; 江苏省科学技术厅项目(BS2004050);; 江苏省环境保护专项资金项目(2005-80-7)
【CateGory Index】: X524
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